Burner



A. J. JOHNSON.

BURNER. Y

APPLICATION FILED NOV. Z5, 1918.

Patented Nov. 30, 1920.

2 bHEiTS-SHEE l- A. J. JOHNSON.

BURNER.

APPLICATION FILED N0v.25,1918.

Patented Nov. 30, 1920.

2 SHEETS-SHEET 2.

UNITED A-sTATEs PATENT OFFICE..-

ANDREW J. JOHNSON,"OF CLEVELAND, OHIO, ASSIGNOR T0 THE JOHNSON PEBFECTION BURNER COMPANY,`0F CLEVELAND, OHIO, A CORPORATION 0F OHIO.

BURNER.

T o all whom it may concern Be `it 1 known that 1, 4ANDREW citizen of. the United States, vresiding at Cleveland,`in the county of Cuyahoga and State of Ohio,-have invented certain'new and useful Improvements in Burners, 'of which the following is a specification.

This invention relates togas burners for use on printing presses to heat the paper for the purpose of eliminating electrostatic effects and for drying the ink, thereby to do away with slip lsheets and increase the speed of the press. The object of the Vin vention is to provide an improved burner of this kind whichthrows the heat downwardly upon the upper surface. of lthe paper, thereby applying it, where desired, directly to the printed surface, and also enabling the burner to be used when printing on heavy paper 'or cardboard. Another object of the.'

invention is to provide aburner of simple compact form which can be applied to presses where the available space is limited and which is so arranged that only a portion of the burner need be used when desired, say when printing narrow-sheets, and which burner is inexpensive both in first cost and in gas consumption.

Further objects vof the invention are in part obvious and in part'will appear more in detail hereinafter.A

The invention comprises' the .burner here.- inafter described and claimed.

`In the drawings, which represent one suitable embodiment ofthe invention, Figure 1 isa sectional elevation `on the line 1 1, Fig. 2; Fig; 2v is a sectional plan view on the line 2 2, Fig. f1; Fig. 3\is a cross section on a larger scale on the line 3 3, Fig. 1; I

Fig. 4 is asimilar crosssection 'on the line 4 4, Fig. 1,'and Fig. 5 is a detail perspective view of` a vsupporting arm.

The burner'shown in .the drawings comprises 'a main burnertube 1 -ofany desired length according to the width of the press,

and which' is 'suitably` supported yand is pierced along lone side tojform a row or series of'closely spaced small jet openin 2 in longitudinal alinement withv each ot er.

Said tube yhas attached thereto at intervals along its upper surface a series of brackets 3, which extend horizontally outwardly from the jet side of the tube.'V To the under surfaces of said brackets is secured the devfleeting plate 4 which may be -heat insulated in any suitable manner. As shown lsaid Specification of Letters Patent.

J. JOHNSON, l

Patented Nov. 3o, ieao.

j Application led November 25, 1918. `Serial No. 264,039.

plate comprises two parallel thin metal sheets 5 between which is a layer 6 of asbestos or'other heat insulating material. Plate 4 fits closelyat its inner edge against the tube 1 and its Outer portion is bent downs wardly, as at 7 where theedge of one of its metal sheets is rolled around a stiff wire or reinforcing rod 8. The downwardly inclined outerrtip of the plate serves as a guard to confine theA flame and prevent it from passing around and beyond the defiectingplate.

Just below the jet openings 2 the tube 1 carries a jet guard 9 which is shown as a long narrow metal strip held by a series of clips 10 secured to the tube. This gniard at its inner edge its closely against the tube.

p It extends outwardly horizontally, as shown in Fig. 3, beyond the jet openings and therefore shields Vthem from direct How of the outer yair from beneath. At the same time a very material area of the deflector plate 4 is exposed beyond the guard strip to reiiect .the heat downwardly upon the paper passing beneath the burner.

At intervals along its length the burner may also be provided with guard fingers or paper deflectors in the form of rods 11 secured by clips 12 to the tube 1. These fingers extend outwardly below the guard strip and preferably also beyond the defiector plate 4 and at their outer ends are bent upwardly, beyond the edge of said deiiector plate. Fingers 11 serve. to guard the paper against direct contact with the {iame as they guide the sheet or web beneath the burner and prevent itV from entering the combustion pchamber or space in front of the` jet openings. l

Gas may be supplied to the burner in any desired manner. The drawings show for this purpose a gas supply ltube 13 communieating with a suitable regulating valve member 14, having the -usual rotatably adjustable needle valve spindle 15 and beyond which endof said tube may be provided with a regulating valve device 18 similar in all respects to the one just described. fllhe burner tube alsois. provided with a series of clips 19 supporting a supplemental gas pipe 20 communicating by abranch 21 with the main gas supply pipe 13, said pipe 2O delivering gas to the valve device 18. The plug 17 stops the flow of gas beyond the middle of the burner tube so that each half of said tube is supplied independently of the other half. Either half of the burner may, therefore, be used independently of the other en printing narrow sheets or cards, or both halves may be used together if desired.

The supports for the burner may be of any suitable form-and preferably comprise brackets or arms connected to some part of the burner and arranged for attachment to the frame of the lpress to support the burner in the proper position. As illustrated, one end portion of the vburner tube is held firmly in a split clamp 22 on an arm comprising two members 23, 24, one of which is slotted longitudinally, said members being secured together by the lbolts 25 and the second member 24 being provided with a suitable clamp 26 adapted to be clamped to a part of the press frame. v V

The other end of the burner tube carries a split collar 27 rigidly secured thereto by a screw 28 and provided with a laterally projecting ear 27 a. This collar is adjustable circumferentially and longitudinally of the tube to any desired position. Next to the collar 27 is an annular collar 29 on a two part arm 30 formed similarly to the arm at the other end of the burner tube. Collar 29 is provided with two spaced lugs 31 between which lies the ear 29. Collar' 29 is a loose fit on the tube. This arrangement supports i the burner on the press frame in proper posiing through a single press.

tion but the burner is held rigidly at only one end and is capable of longitudinal movement at its other end. Consequently, it can come and go with expansion and Icontraction due to changes in temperature.

l The burner described is very eflicient. The flames produced at the -jet openings are projected out beneath the deflector plate and the heat therefrom is deflected downwardly directly on the inked surface. The ink is therefore, dried quickly at least to the extent of forming a tough skin thereon. Therefore, the use of slip sheets is unnecesary and multicolored printing processes or other .processes involving repeated printing on `the same surface may be carried'out with the several applications to the sheet while travel- Heatingv the paper also eliminates static electrical effects.

What I claim is: 1. A burner for use on printing presses,

f comprising a burner tube having a series of jet openings along one side, a deector member carried by said tube above said openings and extending horizontally outwardly therefrom,and a series of paper guard fingers extending outwardly fromsaid tube below said rcomprising a burner tube having a series of )et openings along one side, a defiector member carried by said tube above said openings and extendinghorizontally outwardly therefrom, a series of paper guard fingers extending outwardly from said tube below said openings and at their outer'ends bent upwardly beyond the edge of said deflector plate. v f. l Y l 4. A burner for use on printing presses, comprising a burner tubehaving al series pf et openings along one side, a deflector memr carried by said tube above said openings and extending horizontally outwardly therefrom, a guard plate extending outwardlyv from said tube below said openings, and a series of paper guard fingers extending out-- wardly from said tube-below said openings and at their outer ends bent upwardly beyond the edge of said deflector plate.

' 5. A burner for use on printing presses, comprising a burner tube having a series of jet openings along one side, a guard plate extending outwardly from said tube below said openings, and a series of paper guard fingers extending outwardly from saidtube below said openings. p Y

6. A' burner for use on printing presses, comprising afburner tube having a series of jet openings alongv one side, a guard plate extending outwardly therefrom,- a guard plate extending outwardly from said tube below said openings, and a series of paper guard 'fingers extending outwardly from said tube below said openings and attheir outer ends bent upwardly beyond the edge of said deflector plate.

In testimony whereof I affix m signature.

' ANDREW J. JO NSON. 

